Tokamak Startup Using Point-Source dc Helicity Injection

被引：35
|
作者：
Battaglia, D. J. [1 ]
Bongard, M. W. [1 ]
Fonck, R. J. [1 ]
Redd, A. J. [1 ]
Sontag, A. C. [1 ]
机构：
[1] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 22期
关键词：
plasma confinement; plasma magnetohydrodynamics; plasma turbulence; Tokamak devices; PEGASUS TOROIDAL EXPERIMENT; PLASMAS;
D O I：
10.1103/PhysRevLett.102.225003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Startup of a 0.1 MA tokamak plasma is demonstrated on the ultralow aspect ratio Pegasus Toroidal Experiment using three localized, high-current density sources mounted near the outboard midplane. The injected open field current relaxes via helicity-conserving magnetic turbulence into a tokamaklike magnetic topology where the maximum sustained plasma current is determined by helicity balance and the requirements for magnetic relaxation.
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页数：4
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